GALNT10 and GALNT18 are members of the GalNAc polypeptide N‐acetyl‐galactosaminyltransferases, which catalyse O‐linked glycosylation of mucin and can promote EGFR O‐glycosylation and subsequent AKT phosphorylation, leading to tumour proliferation.55, 56. Here, MUC5AC is linked to neoplasm.